The paper length is not relevant since the chart flows from one page to the next.
Mobile
in.
mm
Staand
2.75
70
For smart phones, not for printing
Liggend
5.5
140
For smart phones, not for printing
International
in.
mm
A5 Staand
5.82
148
A4 Staand
8.25
210
Also A5 Liggend
A4 Liggend
11.71
297
Also A3 Liggend
A3 Liggend
16.54
420
USA & Canada
in.
mm
Letter Staand
8.5
216
Also Legal Staand
Letter Liggend
11
279
Legal Liggend
14
356
Also Ledger Staand
Ledger Liggend
17
432
The Text+ programs assume that the right and left margins are each about 25mm (1/2 inch) wide.
On the Format for Printing page, differences in page margins can be accommodated by the "fudge factor":
        Magdalena Arijsdr van der Schee (ged.9 mei 1723 Poortugaal - 25 mei 1797 Rotterdam)
        (huw. 27 mei 1753 Poortugaal)
                Johannes Coenraad Spil (Rotterdam;23 nov 1792 - 8 nov 1853)(huw. 23 jun 1819 Rotterdam)
                    Arie de Jong (Rotterdam;28 nov 1824 - 16 sep 1907)(huw. 30 apr 1851 Rotterdam)
                       └─Cornelia de Jong (Rotterdam;27 dec 1857 - 22 feb 1920)
                        Willem Minnebruiker (28 aug 1852 Dordrecht - 3 aug 1920 Rotterdam)
                        (huw. 7 jul 1875 Rotterdam)